11112200131 has 4 divisors (see below), whose sum is σ = 11268710064. Its totient is φ = 10955690200.

The previous prime is 11112200129. The next prime is 11112200171. The reversal of 11112200131 is 13100221111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11112200131 - 2¹ = 11112200129 is a prime.

It is a super-2 number, since 2×11112200131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11112200171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78254860 + ... + 78255001.

It is an arithmetic number, because the mean of its divisors is an integer number (2817177516).

Almost surely, 2^11112200131 is an apocalyptic number.

11112200131 is a deficient number, since it is larger than the sum of its proper divisors (156509933).

11112200131 is an equidigital number, since it uses as much as digits as its factorization.

11112200131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156509932.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11112200131 its reverse (13100221111), we get a palindrome (24212421242).

The spelling of 11112200131 in words is "eleven billion, one hundred twelve million, two hundred thousand, one hundred thirty-one".